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From: William Lee Irwin III <wli@holomorphy.com>
To: Anton Blanchard <anton@samba.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	akpm@zip.com.au, riel@surriel.com
Subject: Re: statm_pgd_range() sucks!
Date: Fri, 30 Aug 2002 01:31:00 -0700	[thread overview]
Message-ID: <20020830083100.GQ18114@holomorphy.com> (raw)
In-Reply-To: <20020830082456.GC10656@krispykreme>

At some point in the past, I wrote:
>> Okay, I have *had it* with statm_pgd_range()!

On Fri, Aug 30, 2002 at 06:24:56PM +1000, Anton Blanchard wrote:
> On a related note, it would be nice if procps would not parse things it
> doesnt need:
> strace ps 2>&1 | grep open | grep '/proc'
> open("/proc/12467/stat", O_RDONLY)      = 7
> open("/proc/12467/statm", O_RDONLY)     = 7
> open("/proc/12467/status", O_RDONLY)    = 7
> open("/proc/12467/cmdline", O_RDONLY)   = 7
> open("/proc/12467/environ", O_RDONLY)   = 7
> It always opens statm even when its not required.
> Anton

Userspace is FITH, it only needs to do it for BSD-style stuff reporting
RSS/vsz. vsz is wrong anyway if it doesn't open /proc/$PID/maps.


Cheers,
Bill

WARNING: multiple messages have this Message-ID (diff)
From: William Lee Irwin III <wli@holomorphy.com>
To: Anton Blanchard <anton@samba.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	akpm@zip.com.au, riel@surriel.com
Subject: Re: statm_pgd_range() sucks!
Date: Fri, 30 Aug 2002 01:31:00 -0700	[thread overview]
Message-ID: <20020830083100.GQ18114@holomorphy.com> (raw)
In-Reply-To: <20020830082456.GC10656@krispykreme>

At some point in the past, I wrote:
>> Okay, I have *had it* with statm_pgd_range()!

On Fri, Aug 30, 2002 at 06:24:56PM +1000, Anton Blanchard wrote:
> On a related note, it would be nice if procps would not parse things it
> doesnt need:
> strace ps 2>&1 | grep open | grep '/proc'
> open("/proc/12467/stat", O_RDONLY)      = 7
> open("/proc/12467/statm", O_RDONLY)     = 7
> open("/proc/12467/status", O_RDONLY)    = 7
> open("/proc/12467/cmdline", O_RDONLY)   = 7
> open("/proc/12467/environ", O_RDONLY)   = 7
> It always opens statm even when its not required.
> Anton

Userspace is FITH, it only needs to do it for BSD-style stuff reporting
RSS/vsz. vsz is wrong anyway if it doesn't open /proc/$PID/maps.


Cheers,
Bill
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  reply	other threads:[~2002-08-30  8:26 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-08-30  1:58 statm_pgd_range() sucks! William Lee Irwin III
2002-08-30  1:58 ` William Lee Irwin III
2002-08-30  2:51 ` Andrew Morton
2002-08-30  2:51   ` Andrew Morton
2002-08-30  3:12   ` William Lee Irwin III
2002-08-30  3:12     ` William Lee Irwin III
2002-08-30  3:54     ` Andrew Morton
2002-08-30  3:54       ` Andrew Morton
2002-08-30 17:45     ` Gerrit Huizenga
2002-08-30 17:45       ` Gerrit Huizenga
2002-09-01 22:02   ` Daniel Phillips
2002-09-01 22:02     ` Daniel Phillips
2002-09-05  3:20   ` William Lee Irwin III
2002-09-05  3:20     ` William Lee Irwin III
2002-09-05  4:48     ` Andrew Morton
2002-09-05  4:48       ` Andrew Morton
2002-09-05  6:05       ` William Lee Irwin III
2002-09-05  6:05         ` William Lee Irwin III
2002-09-05  6:49         ` Andrew Morton
2002-09-05  6:49           ` Andrew Morton
2002-09-05  7:07           ` William Lee Irwin III
2002-09-05  7:07             ` William Lee Irwin III
2002-09-05  6:22     ` William Lee Irwin III
2002-09-05  6:22       ` William Lee Irwin III
2002-08-30  8:24 ` Anton Blanchard
2002-08-30  8:24   ` Anton Blanchard
2002-08-30  8:31   ` William Lee Irwin III [this message]
2002-08-30  8:31     ` William Lee Irwin III

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